Phoenix Arizona Population 2024 By Race. The last official us census in 2020 recorded the population at 1,612,459. Usafacts uses census data to break down the population of arizona by race, age, and more.

The largest county in arizona by population count is maricopa. Phoenix population in 2024 is estimated to be 1.64 million, its fifth largest populous city in u.s with an area of 519.11 sq miles (1,344.50 sq.km).